Extension tubes are designed to enable a lens to
focus closer than its normal set minimum focusing diatance. Getting closer has
the effect of nagnigying your subhect ( making it appear larger in the
viewfinder and in your pictures ). They are exceptionally useful for macro
photography, enabling you to convert almost any lens into a macro lens at a
fracton of the cost while maintaining its original optical quality.

This is used by attaching between camera body and
lens of the 35mm single-lens reflex camera. It comes as a set of 3 tubes of
different lenghts which singly or in combination makes it usable in 7 different
lengths. It couples perfectly with the camera's automatic diaphragm. With
cameras of TTL.AE(Through-the-Lens, Automatic.Exposure) type it gives perfect
coupling except when combined with electronic flash EAE unit.

Tube diameter: ab.62mm

BEFORE SHOOTING

How to attach to Camera- Attach to camera or
detach in the same way as attaching or detaching the cameras master lens.

Procedure for attaching to camera- With Canon
typeof tube, be sure to attach master lens only after tube has been properly
attached to camera body. Take care not to mistake this order lest it fails to
couple with the TTL meter or the AE mechanism. This, however does not apply to
other type of tube.

Order of combining the tubes- When using 2 or 3
tubes in combination the can be comvined freely.

Compatibility of Lens- Suitable Lenses are from
standard to semi-telephoto as well as macro (micro) lenses. Wide-angle and Zoom
lenses are also usable. but depending on how the lens is combined with the tube
distance between lens front and subject may become extrmely close.

ON EXPOSURE

When using TTL AE Camera- If Auto Extension Tube
is correctly attached, if not only couples with the automatic diaphragm but also
with TTL meter and AE(EE) mechanism. As the exposure factor will be
automatically corected you can shoot according to the camera's directions.

When Using Non-TTL Camera- As correction of the
exposure factor becomes necessary adjust the lens aperture or shutter speed
accordingly before the shooting.

When Using an Independent Flash unit- Calculate
the F-value from the Guide Number, make correction for exposure factor and after
using this for maiking test shots abtain your correct exposure.

OTHER PRECAUTIONS

In Close-up shooting, as the subject's depth
of field becomes shallow, never forget to stop down the lens.

Take care that when image magnigication ratio
increases camera shake is also liable to increase. (The use of tripod and
cable release is advisable

In the case of a TTL camera, the backfow of
light form the viewfinder will nave a stronger effect on light metering when
Auto Extension Tube is attached than when shooting with the master lens
alone. So when there is a backflow of light form the viewfinder follow the
camera's instruction book to cut it out.

Focus is adjusted by changing the distance
between subhect and camer or by operating the helical divice of the master
lens. If focusing is done by the split-image matching method it causes
increase in exposure factoer and may darken either the top or bottom half
oth the image. In such a case obtain focus on the matt surface around it.

The Canon Tyoe of tube is for exclusive Al
system lenses (unusavle for other convetional lenses).

SAMPLE PHOTOS WITH 18-105MM LENS

SAMPLE AT 18MM

SAMPLE AT 105MM

SAMPLE WITH 13MM EXTENSION @ 105MM

SAMPLE WITH 21MM EXTENSION @ 105MM

SAMPLE WITH 31MM EXTENSION @ 105MM

SAMPLE WITH 13MM 21MM AND 31MM EXTENSION @ 105MM

Designed To Decrease focal length of prime lenses while
maintaining full